749939400 has 288 divisors, whose sum is σ = 2935258560. Its totient is φ = 168030720.

The previous prime is 749939387. The next prime is 749939413. The reversal of 749939400 is 4939947.

It is an interprime number because it is at equal distance from previous prime (749939387) and next prime (749939413).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 667239 + ... + 668361.

It is an arithmetic number, because the mean of its divisors is an integer number (10191870).

Almost surely, 2^749939400 is an apocalyptic number.

749939400 is a gapful number since it is divisible by the number (70) 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 749939400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467629280).

749939400 is an abundant number, since it is smaller than the sum of its proper divisors (2185319160).

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

749939400 is a wasteful number, since it uses less digits than its factorization.

749939400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 749939400 is about 27385.0214533420. The cubic root of 749939400 is about 908.5358251996.

The spelling of 749939400 in words is "seven hundred forty-nine million, nine hundred thirty-nine thousand, four hundred".