1390429434 has 16 divisors (see below), whose sum is σ = 2781492480. Its totient is φ = 463370880.

The previous prime is 1390429429. The next prime is 1390429457. The reversal of 1390429434 is 4349240931.

It is a junction number, because it is equal to n+sod(n) for n = 1390429392 and 1390429401.

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, 5002 + ... + 52970.

It is an arithmetic number, because the mean of its divisors is an integer number (173843280).

Almost surely, 2^1390429434 is an apocalyptic number.

1390429434 is an abundant number, since it is smaller than the sum of its proper divisors (1391063046).

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

1390429434 is a wasteful number, since it uses less digits than its factorization.

1390429434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52805.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1390429434 is about 37288.4624783592. The cubic root of 1390429434 is about 1116.1339477075.

The spelling of 1390429434 in words is "one billion, three hundred ninety million, four hundred twenty-nine thousand, four hundred thirty-four".