48951640 has 32 divisors (see below), whose sum is σ = 110466000. Its totient is φ = 19522944.

The previous prime is 48951611. The next prime is 48951641. The reversal of 48951640 is 4615984.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 48951640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48951641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13546 + ... + 16774.

Almost surely, 2^48951640 is an apocalyptic number.

48951640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48951640 is an abundant number, since it is smaller than the sum of its proper divisors (61514360).

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

48951640 is a wasteful number, since it uses less digits than its factorization.

48951640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3615 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 48951640 is about 6996.5448615727. The cubic root of 48951640 is about 365.8101476869.

The spelling of 48951640 in words is "forty-eight million, nine hundred fifty-one thousand, six hundred forty".