46191021 has 8 divisors (see below), whose sum is σ = 61783584. Its totient is φ = 30696240.

The previous prime is 46191017. The next prime is 46191029. The reversal of 46191021 is 12019164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 46191021 - 2² = 46191017 is a prime.

It is a super-2 number, since 2×46191021² = 4267220842044882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 46190982 and 46191000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46191029) 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, 23335 + ... + 25236.

It is an arithmetic number, because the mean of its divisors is an integer number (7722948).

Almost surely, 2^46191021 is an apocalyptic number.

It is an amenable number.

46191021 is a deficient number, since it is larger than the sum of its proper divisors (15592563).

46191021 is a wasteful number, since it uses less digits than its factorization.

46191021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48891.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 46191021 is about 6796.3976487548. The cubic root of 46191021 is about 358.8000712768.

The spelling of 46191021 in words is "forty-six million, one hundred ninety-one thousand, twenty-one".