1406997429 has 16 divisors (see below), whose sum is σ = 1883269440. Its totient is φ = 934371200.

The previous prime is 1406997373. The next prime is 1406997457. The reversal of 1406997429 is 9247996041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1406997429 - 2¹³ = 1406989237 is a prime.

It is a super-2 number, since 2×1406997429² = 3959283530425220082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406997479) 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, 1700914 + ... + 1701740.

It is an arithmetic number, because the mean of its divisors is an integer number (117704340).

Almost surely, 2^1406997429 is an apocalyptic number.

It is an amenable number.

1406997429 is a deficient number, since it is larger than the sum of its proper divisors (476272011).

1406997429 is an equidigital number, since it uses as much as digits as its factorization.

1406997429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1406997429 is about 37509.9643961441. The cubic root of 1406997429 is about 1120.5496422608.

The spelling of 1406997429 in words is "one billion, four hundred six million, nine hundred ninety-seven thousand, four hundred twenty-nine".