49702640 has 40 divisors (see below), whose sum is σ = 124450368. Its totient is φ = 18351360.

The previous prime is 49702633. The next prime is 49702663. The reversal of 49702640 is 4620794.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 49702597 and 49702606.

It is a congruent number.

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, 22856 + ... + 24935.

Almost surely, 2^49702640 is an apocalyptic number.

49702640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49702640 is an abundant number, since it is smaller than the sum of its proper divisors (74747728).

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

49702640 is a wasteful number, since it uses less digits than its factorization.

49702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47817 (or 47811 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 49702640 is about 7050.0099290710. The cubic root of 49702640 is about 367.6713748661.

The spelling of 49702640 in words is "forty-nine million, seven hundred two thousand, six hundred forty".