39800457 has 16 divisors (see below), whose sum is σ = 59062080. Its totient is φ = 26489376.

The previous prime is 39800443. The next prime is 39800461. The reversal of 39800457 is 75400893.

It is not a de Polignac number, because 39800457 - 2⁶ = 39800393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39800477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27178 + ... + 28604.

It is an arithmetic number, because the mean of its divisors is an integer number (3691380).

Almost surely, 2^39800457 is an apocalyptic number.

It is an amenable number.

39800457 is a deficient number, since it is larger than the sum of its proper divisors (19261623).

39800457 is a wasteful number, since it uses less digits than its factorization.

39800457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 39800457 is about 6308.7603378160. The cubic root of 39800457 is about 341.4255515051.

The spelling of 39800457 in words is "thirty-nine million, eight hundred thousand, four hundred fifty-seven".