1490945418 has 12 divisors (see below), whose sum is σ = 3230381778. Its totient is φ = 496981800.

The previous prime is 1490945411. The next prime is 1490945429. The reversal of 1490945418 is 8145490941.

It is a happy number.

1490945418 is a `hidden beast` number, since 14 + 9 + 0 + 94 + 541 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1476634329 + 14311089 = 38427^2 + 3783^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1490945411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41415133 + ... + 41415168.

Almost surely, 2^1490945418 is an apocalyptic number.

1490945418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1490945418 is an abundant number, since it is smaller than the sum of its proper divisors (1739436360).

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

1490945418 is a wasteful number, since it uses less digits than its factorization.

1490945418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82830309 (or 82830306 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1490945418 is about 38612.7623720448. The cubic root of 1490945418 is about 1142.4062792787.

The spelling of 1490945418 in words is "one billion, four hundred ninety million, nine hundred forty-five thousand, four hundred eighteen".