1375631400 has 192 divisors, whose sum is σ = 5010304320. Its totient is φ = 307814400.

The previous prime is 1375631371. The next prime is 1375631401. The reversal of 1375631400 is 41365731.

1375631400 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1375631401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77784 + ... + 93816.

It is an arithmetic number, because the mean of its divisors is an integer number (26095335).

Almost surely, 2^1375631400 is an apocalyptic number.

1375631400 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 1375631400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505152160).

1375631400 is an abundant number, since it is smaller than the sum of its proper divisors (3634672920).

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

1375631400 is a wasteful number, since it uses less digits than its factorization.

1375631400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076 (or 16067 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1375631400 is about 37089.5052541821. The cubic root of 1375631400 is about 1112.1602278476.

The spelling of 1375631400 in words is "one billion, three hundred seventy-five million, six hundred thirty-one thousand, four hundred".