1406546401 has 4 divisors (see below), whose sum is σ = 1514742292. Its totient is φ = 1298350512.

The previous prime is 1406546399. The next prime is 1406546413. The reversal of 1406546401 is 1046456041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 841058001 + 565488400 = 29001^2 + 23780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406546401 - 2¹ = 1406546399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406546461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54097926 + ... + 54097951.

It is an arithmetic number, because the mean of its divisors is an integer number (378685573).

Almost surely, 2^1406546401 is an apocalyptic number.

It is an amenable number.

1406546401 is a deficient number, since it is larger than the sum of its proper divisors (108195891).

1406546401 is a wasteful number, since it uses less digits than its factorization.

1406546401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108195890.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1406546401 is about 37503.9518051098. The cubic root of 1406546401 is about 1120.4298947599.

The spelling of 1406546401 in words is "one billion, four hundred six million, five hundred forty-six thousand, four hundred one".