7949400 has 48 divisors (see below), whose sum is σ = 24645000. Its totient is φ = 2119680.

The previous prime is 7949399. The next prime is 7949401. The reversal of 7949400 is 49497.

It is an interprime number because it is at equal distance from previous prime (7949399) and next prime (7949401).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7949401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6025 + ... + 7224.

Almost surely, 2^7949400 is an apocalyptic number.

It is an amenable number.

7949400 is an abundant number, since it is smaller than the sum of its proper divisors (16695600).

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

7949400 is a wasteful number, since it uses less digits than its factorization.

7949400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13268 (or 13259 counting only the distinct ones).

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

The square root of 7949400 is about 2819.4680349314. The cubic root of 7949400 is about 199.5774411823.

The spelling of 7949400 in words is "seven million, nine hundred forty-nine thousand, four hundred".