1407121420 has 24 divisors (see below), whose sum is σ = 2955758400. Its totient is φ = 562695552.

The previous prime is 1407121411. The next prime is 1407121421. The reversal of 1407121420 is 241217041.

It is a junction number, because it is equal to n+sod(n) for n = 1407121391 and 1407121400.

It is not an unprimeable number, because it can be changed into a prime (1407121421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92301 + ... + 106459.

It is an arithmetic number, because the mean of its divisors is an integer number (123156600).

Almost surely, 2^1407121420 is an apocalyptic number.

1407121420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1407121420 is an abundant number, since it is smaller than the sum of its proper divisors (1548636980).

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

1407121420 is a wasteful number, since it uses less digits than its factorization.

1407121420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19137 (or 19135 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1407121420 is about 37511.6171338960. The cubic root of 1407121420 is about 1120.5825572675.

Adding to 1407121420 its reverse (241217041), we get a palindrome (1648338461).

The spelling of 1407121420 in words is "one billion, four hundred seven million, one hundred twenty-one thousand, four hundred twenty".