7490900400 has 120 divisors (see below), whose sum is σ = 25407440784. Its totient is φ = 1880064000.

The previous prime is 7490900377. The next prime is 7490900401. The reversal of 7490900400 is 40090947.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×7490900400² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7490900401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163201 + ... + 204000.

Almost surely, 2^7490900400 is an apocalyptic number.

It is an amenable number.

7490900400 is an abundant number, since it is smaller than the sum of its proper divisors (17916540384).

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

7490900400 is a wasteful number, since it uses less digits than its factorization.

7490900400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367239 (or 367228 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7490900400 is about 86549.9878682834. The cubic root of 7490900400 is about 1956.6418617735.

The spelling of 7490900400 in words is "seven billion, four hundred ninety million, nine hundred thousand, four hundred".