420941090 has 16 divisors (see below), whose sum is σ = 783821880. Its totient is φ = 162570240.

The previous prime is 420941089. The next prime is 420941113. The reversal of 420941090 is 90149024.

It can be written as a sum of positive squares in 4 ways, for example, as 288898009 + 132043081 = 16997^2 + 11491^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725471 + ... + 726050.

Almost surely, 2^420941090 is an apocalyptic number.

420941090 is a deficient number, since it is larger than the sum of its proper divisors (362880790).

420941090 is a wasteful number, since it uses less digits than its factorization.

420941090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451557.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 420941090 is about 20516.8489295993. The cubic root of 420941090 is about 749.4461629719.

The spelling of 420941090 in words is "four hundred twenty million, nine hundred forty-one thousand, ninety".