290145032 has 8 divisors (see below), whose sum is σ = 544021950. Its totient is φ = 145072512.

The previous prime is 290145017. The next prime is 290145059. The reversal of 290145032 is 230541092.

It can be written as a sum of positive squares in only one way, i.e., 281769796 + 8375236 = 16786^2 + 2894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 290144992 and 290145010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18134057 + ... + 18134072.

Almost surely, 2^290145032 is an apocalyptic number.

It is an amenable number.

290145032 is a deficient number, since it is larger than the sum of its proper divisors (253876918).

290145032 is a wasteful number, since it uses less digits than its factorization.

290145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36268135 (or 36268131 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 290145032 is about 17033.6441198001. The cubic root of 290145032 is about 662.0209191918.

The spelling of 290145032 in words is "two hundred ninety million, one hundred forty-five thousand, thirty-two".