1378156032 has 480 divisors, whose sum is σ = 4825941120. Its totient is φ = 388177920.

The previous prime is 1378156007. The next prime is 1378156069. The reversal of 1378156032 is 2306518731.

1378156032 is a `hidden beast` number, since 1 + 37 + 8 + 15 + 603 + 2 = 666.

It is a super-3 number, since 3×1378156032³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26002918 + ... + 26002970.

It is an arithmetic number, because the mean of its divisors is an integer number (10054044).

Almost surely, 2^1378156032 is an apocalyptic number.

1378156032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378156032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412970560).

1378156032 is an abundant number, since it is smaller than the sum of its proper divisors (3447785088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378156032 is an equidigital number, since it uses as much as digits as its factorization.

1378156032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1378156032 is about 37123.5239706577. The cubic root of 1378156032 is about 1112.8401772822.

The spelling of 1378156032 in words is "one billion, three hundred seventy-eight million, one hundred fifty-six thousand, thirty-two".