46491880 has 16 divisors (see below), whose sum is σ = 104606820. Its totient is φ = 18596736.

The previous prime is 46491871. The next prime is 46491899. The reversal of 46491880 is 8819464.

It can be written as a sum of positive squares in 2 ways, for example, as 46267204 + 224676 = 6802^2 + 474^2 .

It is a super-2 number, since 2×46491880² = 4322989811868800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1162297 = 46491880 / (4 + 6 + 4 + 9 + 1 + 8 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581109 + ... + 581188.

Almost surely, 2^46491880 is an apocalyptic number.

46491880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46491880 is an abundant number, since it is smaller than the sum of its proper divisors (58114940).

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

46491880 is a wasteful number, since it uses less digits than its factorization.

46491880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162308 (or 1162304 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 46491880 is about 6818.4954352115. The cubic root of 46491880 is about 359.5773847313.

The spelling of 46491880 in words is "forty-six million, four hundred ninety-one thousand, eight hundred eighty".