1455129420 has 24 divisors (see below), whose sum is σ = 4074362544. Its totient is φ = 388034496.

The previous prime is 1455129419. The next prime is 1455129427. The reversal of 1455129420 is 249215541.

1455129420 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1455129420³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1455129427) 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, 12126019 + ... + 12126138.

It is an arithmetic number, because the mean of its divisors is an integer number (169765106).

Almost surely, 2^1455129420 is an apocalyptic number.

1455129420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455129420 is an abundant number, since it is smaller than the sum of its proper divisors (2619233124).

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

1455129420 is a wasteful number, since it uses less digits than its factorization.

1455129420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24252169 (or 24252167 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1455129420 is about 38146.1586532642. The cubic root of 1455129420 is about 1133.1842781673.

The spelling of 1455129420 in words is "one billion, four hundred fifty-five million, one hundred twenty-nine thousand, four hundred twenty".