421454280 has 64 divisors (see below), whose sum is σ = 1361626560. Its totient is φ = 103742208.

The previous prime is 421454279. The next prime is 421454281. The reversal of 421454280 is 82454124.

It is an interprime number because it is at equal distance from previous prime (421454279) and next prime (421454281).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (421454281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133522 + ... + 136641.

It is an arithmetic number, because the mean of its divisors is an integer number (21275415).

Almost surely, 2^421454280 is an apocalyptic number.

421454280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421454280 is an abundant number, since it is smaller than the sum of its proper divisors (940172280).

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

421454280 is a wasteful number, since it uses less digits than its factorization.

421454280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270190 (or 270186 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 421454280 is about 20529.3516702306. The cubic root of 421454280 is about 749.7506015208.

The spelling of 421454280 in words is "four hundred twenty-one million, four hundred fifty-four thousand, two hundred eighty".