1403220690 has 24 divisors (see below), whose sum is σ = 3648374028. Its totient is φ = 374192160.

The previous prime is 1403220683. The next prime is 1403220697. The reversal of 1403220690 is 960223041.

1403220690 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1403220683) and next prime (1403220697).

It can be written as a sum of positive squares in 2 ways, for example, as 1200414609 + 202806081 = 34647^2 + 14241^2 .

It is a super-2 number, since 2×1403220690² = 3938056609688152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1403220697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7795581 + ... + 7795760.

Almost surely, 2^1403220690 is an apocalyptic number.

1403220690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1403220690 is an abundant number, since it is smaller than the sum of its proper divisors (2245153338).

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

1403220690 is a wasteful number, since it uses less digits than its factorization.

1403220690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15591354 (or 15591351 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1403220690 is about 37459.5874243164. The cubic root of 1403220690 is about 1119.5461304054.

The spelling of 1403220690 in words is "one billion, four hundred three million, two hundred twenty thousand, six hundred ninety".