1451436420 has 48 divisors (see below), whose sum is σ = 4644597888. Its totient is φ = 331756800.

The previous prime is 1451436361. The next prime is 1451436431. The reversal of 1451436420 is 246341541.

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

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, 1727481 + ... + 1728320.

It is an arithmetic number, because the mean of its divisors is an integer number (96762456).

Almost surely, 2^1451436420 is an apocalyptic number.

1451436420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451436420 is an abundant number, since it is smaller than the sum of its proper divisors (3193161468).

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

1451436420 is a wasteful number, since it uses less digits than its factorization.

1451436420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3455820 (or 3455818 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1451436420 is about 38097.7219791420. The cubic root of 1451436420 is about 1132.2248228889.

Adding to 1451436420 its reverse (246341541), we get a palindrome (1697777961).

The spelling of 1451436420 in words is "one billion, four hundred fifty-one million, four hundred thirty-six thousand, four hundred twenty".