1402689490 has 16 divisors (see below), whose sum is σ = 2560403520. Its totient is φ = 553173040.

The previous prime is 1402689481. The next prime is 1402689493. The reversal of 1402689490 is 949862041.

It is not an unprimeable number, because it can be changed into a prime (1402689493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987100 + ... + 988519.

It is an arithmetic number, because the mean of its divisors is an integer number (160025220).

Almost surely, 2^1402689490 is an apocalyptic number.

1402689490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1402689490 is a deficient number, since it is larger than the sum of its proper divisors (1157714030).

1402689490 is a wasteful number, since it uses less digits than its factorization.

1402689490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975697.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1402689490 is about 37452.4964454975. The cubic root of 1402689490 is about 1119.4048416384.

The spelling of 1402689490 in words is "one billion, four hundred two million, six hundred eighty-nine thousand, four hundred ninety".