74280396 has 12 divisors (see below), whose sum is σ = 173320952. Its totient is φ = 24760128.

The previous prime is 74280389. The next prime is 74280403. The reversal of 74280396 is 69308247.

74280396 = 980² + 981² + ... + 1051².

It is an interprime number because it is at equal distance from previous prime (74280389) and next prime (74280403).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095005 + ... + 3095028.

Almost surely, 2^74280396 is an apocalyptic number.

It is an amenable number.

74280396 is an abundant number, since it is smaller than the sum of its proper divisors (99040556).

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

74280396 is a wasteful number, since it uses less digits than its factorization.

74280396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190040 (or 6190038 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 74280396 is about 8618.6075441454. The cubic root of 74280396 is about 420.3632458393.

The spelling of 74280396 in words is "seventy-four million, two hundred eighty thousand, three hundred ninety-six".