1421405454 has 32 divisors (see below), whose sum is σ = 3250080000. Its totient is φ = 405971712.

The previous prime is 1421405437. The next prime is 1421405467. The reversal of 1421405454 is 4545041241.

1421405454 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-2 number, since 2×1421405454² = 4040786929321892232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185797 + ... + 193295.

It is an arithmetic number, because the mean of its divisors is an integer number (101565000).

Almost surely, 2^1421405454 is an apocalyptic number.

1421405454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1421405454 is an abundant number, since it is smaller than the sum of its proper divisors (1828674546).

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

1421405454 is a wasteful number, since it uses less digits than its factorization.

1421405454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 1421405454 is about 37701.5311890645. The cubic root of 1421405454 is about 1124.3615680331.

Adding to 1421405454 its reverse (4545041241), we get a palindrome (5966446695).

The spelling of 1421405454 in words is "one billion, four hundred twenty-one million, four hundred five thousand, four hundred fifty-four".