49400940 has 24 divisors (see below), whose sum is σ = 138322800. Its totient is φ = 13173568.

The previous prime is 49400927. The next prime is 49400951. The reversal of 49400940 is 4900494.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 49400898 and 49400907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411615 + ... + 411734.

It is an arithmetic number, because the mean of its divisors is an integer number (5763450).

Almost surely, 2^49400940 is an apocalyptic number.

It is an amenable number.

49400940 is an abundant number, since it is smaller than the sum of its proper divisors (88921860).

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

49400940 is a wasteful number, since it uses less digits than its factorization.

49400940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823361 (or 823359 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 49400940 is about 7028.5802264753. The cubic root of 49400940 is about 366.9259305016.

The spelling of 49400940 in words is "forty-nine million, four hundred thousand, nine hundred forty".