1642622046 has 32 divisors (see below), whose sum is σ = 3541618080. Its totient is φ = 504898944.

The previous prime is 1642622021. The next prime is 1642622053. The reversal of 1642622046 is 6402262461.

It is a super-2 number, since 2×1642622046² = 5396414372010452232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1642621998 and 1642622016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68620 + ... + 89408.

It is an arithmetic number, because the mean of its divisors is an integer number (110675565).

Almost surely, 2^1642622046 is an apocalyptic number.

1642622046 is an abundant number, since it is smaller than the sum of its proper divisors (1898996034).

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

1642622046 is a wasteful number, since it uses less digits than its factorization.

1642622046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 1642622046 is about 40529.2739387224. The cubic root of 1642622046 is about 1179.9018509766.

The spelling of 1642622046 in words is "one billion, six hundred forty-two million, six hundred twenty-two thousand, forty-six".