1390472654 has 16 divisors (see below), whose sum is σ = 2143102416. Its totient is φ = 676123200.

The previous prime is 1390472651. The next prime is 1390472701. The reversal of 1390472654 is 4562740931.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390472651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243674 + ... + 249314.

It is an arithmetic number, because the mean of its divisors is an integer number (133943901).

Almost surely, 2^1390472654 is an apocalyptic number.

1390472654 is a deficient number, since it is larger than the sum of its proper divisors (752629762).

1390472654 is a wasteful number, since it uses less digits than its factorization.

1390472654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9011.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1390472654 is about 37289.0420096843. The cubic root of 1390472654 is about 1116.1455121945.

The spelling of 1390472654 in words is "one billion, three hundred ninety million, four hundred seventy-two thousand, six hundred fifty-four".