1415840420 has 24 divisors (see below), whose sum is σ = 2977430400. Its totient is φ = 565542752.

The previous prime is 1415840381. The next prime is 1415840429. The reversal of 1415840420 is 240485141.

It is not an unprimeable number, because it can be changed into a prime (1415840429) 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, 34850 + ... + 63609.

It is an arithmetic number, because the mean of its divisors is an integer number (124059600).

Almost surely, 2^1415840420 is an apocalyptic number.

1415840420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1415840420 is an abundant number, since it is smaller than the sum of its proper divisors (1561589980).

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

1415840420 is a wasteful number, since it uses less digits than its factorization.

1415840420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99187 (or 99185 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1415840420 is about 37627.6549893825. The cubic root of 1415840420 is about 1122.8922959561.

The spelling of 1415840420 in words is "one billion, four hundred fifteen million, eight hundred forty thousand, four hundred twenty".