1378176740 has 96 divisors (see below), whose sum is σ = 3193634304. Its totient is φ = 497387520.

The previous prime is 1378176727. The next prime is 1378176769. The reversal of 1378176740 is 476718731.

It is a super-2 number, since 2×1378176740² = 3798742253354055200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1378176691 and 1378176700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892409 + ... + 893951.

It is an arithmetic number, because the mean of its divisors is an integer number (33267024).

Almost surely, 2^1378176740 is an apocalyptic number.

1378176740 is a gapful number since it is divisible by the number (10) 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 1378176740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596817152).

1378176740 is an abundant number, since it is smaller than the sum of its proper divisors (1815457564).

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

1378176740 is a wasteful number, since it uses less digits than its factorization.

1378176740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 1378176740 is about 37123.8028763218. The cubic root of 1378176740 is about 1112.8457510533.

The spelling of 1378176740 in words is "one billion, three hundred seventy-eight million, one hundred seventy-six thousand, seven hundred forty".