49902940 has 48 divisors (see below), whose sum is σ = 107476992. Its totient is φ = 19457856.

The previous prime is 49902907. The next prime is 49902959. The reversal of 49902940 is 4920994.

49902940 = T₁ + T₂ + ... + T₆₆₈.

49902940 is a nontrivial binomial coefficient, being equal to C(670, 3).

It is a self number, because there is not a number n which added to its sum of digits gives 49902940.

It is a congruent number.

It is an unprimeable number.

It is the 668-th tetrahedral number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223669 + ... + 223891.

It is an arithmetic number, because the mean of its divisors is an integer number (2239104).

Almost surely, 2^49902940 is an apocalyptic number.

It is an amenable number.

49902940 is an abundant number, since it is smaller than the sum of its proper divisors (57574052).

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

49902940 is a wasteful number, since it uses less digits than its factorization.

49902940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 49902940 is about 7064.2012995101. The cubic root of 49902940 is about 368.1646140506.

The spelling of 49902940 in words is "forty-nine million, nine hundred two thousand, nine hundred forty".