15454401420 has 48 divisors (see below), whose sum is σ = 44327753568. Its totient is φ = 4020656640.

The previous prime is 15454401419. The next prime is 15454401421. The reversal of 15454401420 is 2410445451.

It is an interprime number because it is at equal distance from previous prime (15454401419) and next prime (15454401421).

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 (15454401421) 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, 3138679 + ... + 3143598.

It is an arithmetic number, because the mean of its divisors is an integer number (923494866).

Almost surely, 2^15454401420 is an apocalyptic number.

15454401420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15454401420 is an abundant number, since it is smaller than the sum of its proper divisors (28873352148).

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

15454401420 is a wasteful number, since it uses less digits than its factorization.

15454401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282330 (or 6282328 counting only the distinct ones).

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

Adding to 15454401420 its reverse (2410445451), we get a palindrome (17864846871).

The spelling of 15454401420 in words is "fifteen billion, four hundred fifty-four million, four hundred one thousand, four hundred twenty".