749127940 has 144 divisors (see below), whose sum is σ = 1852228224. Its totient is φ = 253693440.

The previous prime is 749127931. The next prime is 749127943. The reversal of 749127940 is 49721947.

It is a super-2 number, since 2×749127940² = 1122385340977287200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749127943) 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, 2393224 + ... + 2393536.

It is an arithmetic number, because the mean of its divisors is an integer number (12862696).

Almost surely, 2^749127940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749127940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926114112).

749127940 is an abundant number, since it is smaller than the sum of its proper divisors (1103100284).

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

749127940 is a wasteful number, since it uses less digits than its factorization.

749127940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 749127940 is about 27370.2016799292. The cubic root of 749127940 is about 908.2080180252.

The spelling of 749127940 in words is "seven hundred forty-nine million, one hundred twenty-seven thousand, nine hundred forty".