46991280 has 160 divisors (see below), whose sum is σ = 168989184. Its totient is φ = 10579968.

The previous prime is 46991267. The next prime is 46991291. The reversal of 46991280 is 8219964.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139272 + ... + 139608.

Almost surely, 2^46991280 is an apocalyptic number.

46991280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46991280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84494592).

46991280 is an abundant number, since it is smaller than the sum of its proper divisors (121997904).

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

46991280 is a wasteful number, since it uses less digits than its factorization.

46991280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 46991280 is about 6855.0185995371. The cubic root of 46991280 is about 360.8602882197.

The spelling of 46991280 in words is "forty-six million, nine hundred ninety-one thousand, two hundred eighty".